BS818A-2, BS812A-1 Datasheet (Holtek Semiconductor)

BS818A-2, BS812A-1, Touch Key

The BS81x is a series of 2~16 key touch key devices which can detect human body contact using external touch pads.

The high level of device integration enable applications to be implemented with a minimum number of external components.

The BS81x series devices are equipped with serial or parallel in

BS818A-2 Features

* Operating voltage: 2.2V~5.5V

* Low standby current

* Auto-calibration

* Reliable touch detections

* Standby and normal operating modes

* Maximum key on duration time detection

* Adaptive voltage drop function

* Level Hold, sel